EP 0731666 B1 20010523 - APPARATUS FOR MEASURING THE PEAK EXPIRATORY RATE
Title (en)
APPARATUS FOR MEASURING THE PEAK EXPIRATORY RATE
Title (de)
VORRICHTUNG ZUR MESSUNG DER MAXIMALSTRÖMUNG DER AUSATEMLUFT
Title (fr)
APPAREIL DE MESURE DE DEBIT EXPIRATOIRE DE POINTE
Publication
Application
Priority
- FR 9501234 W 19950926
- FR 9411976 A 19940930
Abstract (en)
[origin: WO9610360A1] The present invention relates to an apparatus for measuring the expiratory rate, comprising a measuring tube (13) partially obturated by a narrowing (17) of the interior of the tube, and a differential pressure sensor (27) coupled to the tube in order to measure the pressures in the tube on either side of the narrowing. The measuring tube (13) is removable and comprises on its external surface flexible annular seals (21) extending beyond the external surface and arranged on either side of the ports (18, 19) opening on either side of the narrowing. The measuring tube is intended to penetrate into a housing (11) of the apparatus having a diameter slightly larger than the external diameter of the measuring tube so that, in an abutment position (15) of the measuring tube in the housing, the seals define with the housing (11) and the external wall of the tube (14) annular chambers (23, 24) communicating respectively with two passages (25, 26) of the housing, which passages are connected to the pressure sensor.
IPC 1-7
IPC 8 full level
A61B 5/087 (2006.01)
CPC (source: EP US)
A61B 5/087 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9610360 A1 19960411; AT E201316 T1 20010615; DE 69521026 D1 20010628; DE 69521026 T2 20020321; EP 0731666 A1 19960918; EP 0731666 B1 20010523; FR 2725123 A1 19960405; FR 2725123 B1 19961220; US 6322519 B1 20011127
DOCDB simple family (application)
FR 9501234 W 19950926; AT 95932055 T 19950926; DE 69521026 T 19950926; EP 95932055 A 19950926; FR 9411976 A 19940930; US 64793296 A 19960716